Combined water column and liquid-level gauge



0. E. OLESON COMBINED WATER COLUMN AND LIQUID LEVEL GAUGE June 30, 1925.

Filed Aug. 16, 1920 ATTORNEY R m E V .m.

OLAF E. 0LE50/v. M6. Ki e,

Patented June 30, 1925.

1,544,346" GFF'ICE- 0mm E. onEsoN, 0F 'CHIdAGd, ILLINOIS.

'obiitiil'imin wAibEiz cdLUiidI Ami Hak m-LEVEL G-AU G E.

Te it eemem:

Be it khwh thzit 1, 011A? Omeex, a citififi ef United Swa tesidih atGhiehge, in the enemy ei Geek hm wee hf I'lhiibi; have ihve'nfed anewendh'se'ful IinpiWffiei-ib iii 'Gehibihed Wheer Columns a'fid :mqei'dhevel Gauges hf whieh the fel iewihg iseie peeifieseioh.

My ieiehhieh white i0 an improved extended *waheredlhmh adapted-foiwe in@65- "referehder tso whe aeahnpfiiiying mikg rcin which a bb-ilei' isshown diagi h imaticafiy at 1'0, and has Water conhecbiohs 11 and '12whzh a float chamber 13. The chamber 13 his eehneet'ed with its lowerend a dawn wiimly extendihg watei gl dldflfii 14 'i'n the liswer end ofwhich -a sight glass- 15 is semired. Intermediate-the ends bfthbtilfiifin i4 e valve hejusin'g 16 is-connected; haviii'gavertical-epenihg 1'7 thrbugh hen thee the vel' iiiiilpllsiige in thewater eblu'mn isuhihtermpte'd by said -%ive musing. The ihg 16in itsupper pei tion is pi d'iiiilfeil with a Valve heat 18, below which aieliefsiig l9 foiiried aiid ciihtidlleil by a #hlve 20 so that, saidrelief passage -mey =-be cdfineewd when desired with d fiiehafig'e ordrain pipe 21. The housing '16 is -e1so;pi b vided with a hy-pes's E2extemii'ng fiend a'beve-tlie 'Valvbai '18 t0 the eo-lfliniii brow saidvalve this hyma'ss eohtrehed by 21 valve 23 by whibh the --by p-'iss'may be epeheder elesedhe desired; h v

ied'25 iseecurecl, 'wh ijch ibd exteiiii's airbag-i hehhee length of hec'eiumh" the valve 'hhii'sing "16 {and *terniihh tes baeke-f e1; withinthe si he-gfles F1145; "ihfliettifi" ene "QB-mhybe maimed *aa hcemzthesfig 'glas s' 1' 5 g n e the iios'i tieh'bftheilbwePehgfl the rod 2 5,(51' ii eo-ivveriient mhhk iiiih eeid i-od ay 'indieaie the pes'ihe hithe em 4 vefticsfiliy ere-c1 ehhsehe evel bif'ihe w ater theboilen; A!(151% Wis Wihh like. lbwer enfl if the e'oluiiiii'to di'ifiii themil-b11511 'w'heh heehea.

H The "em '24 has ex tendihg' .epwehdiy flherefrdm rack *Iiieshingwith-=2: geff'aif 29, which ear oh its oppositeid-hie'shs with aBeofiflfd 3O cotite'inl iii 'a ii'illifilli' housing 3i and cm fies atits kiwer ehd ceuriteriiveig lit. 32. Guide where "33 ehe gear 29.Them-heirs and geahihg %1emetal and to withstand the high pressures usedmany -boilers';; the gwallsf of the; float must "necessaril be ofconsiarable thickness to prevent the float from collapsing. In anyevent, whether theiiifloatr be so. con structed or not the weight of thefloat and of the rod is-so large, particularly where the water level istwenty-five or .thirty feet 9 high pressure and the buoyant effect ofthe float acting upon the unbalanced portion of the weight directlyconnected with the float, is sufiicient to positively andaccuratelymovethe rod- 25 so that its lower portion will afiord a true indication of.the water level intheboiler.-

It will be noted that all of; the gearing and parts connected with thecounterbalancing mechanism are entirely enclosed and that there is noneed for .stuifing boxes of any kind in connection with, said mechanism.

To automatically shnt ofi' the flow of water from the column 14 incasenof accidennias for example breakage of the glass .15,';the .rod 25is provided abovethe valve seat 18 with a valve 36 which, ,when,thefioat;.24 drops, engages the valve seat. 18- andinterrupts communicationbetween the upper and .lower :parts of the column 1 4. glhijs: actionresults from the rushof water through the column due torelieving thepressure on its lower end below thevalve seat; 18. To test theapparatus, the samecondition maybe created by opening the valve 20,.-for. which condition the operatiOfl-Qfthd-Erod 25. as viewed through thesightglass-15 and the flow of water through the -drain pipe 21 affords apositive indication of whether the mechanismf'is in proper. workingorder. When the valve 36 hasbeen thus brought into engagement withitsvalveseatfor any reason, it would remain there, unless the pressurein the. lower part of the .columnl l were again brought up to the.pressure.in theupper part of the clolumn and this condition may beestablished by opening the valve 23'. When the pressuresin the upper andlower parts of theecolumnhavenbeen equalized in this manner, the buoyanteffect of the floatasserts itself and thezrod 25.is lifted tomove thevalve'36 away fromits seat, after which the valve-23 is. closed, whichisthe normal condition ofsaid valve for proper. operation ofthelevelindicating devices. 'My invention thus; provides a means forautomatically stoppingthe escape of water from the boiler. andyalso; forp'reventing loss of pressure in the boiler in case of a s d nt; o amp eka ep the si'ght glass 15, or the lower "part bf the water "column andprovides in addition,

means for reestablishing operative condirepair if desired. It willfurtherbe understoodthat Ido not limit myselfin carrying outmy inventionto the particularembodiment shown and described asI may employequivalents thereof known to the art at the time of the filing of thisapplication without -departing,.;trom the scope of the appended claims.What I claim is-:.

- p 1.] In a device of the vclass described, the combination of a.float, chamber,,;for connection with a boiler, afloatin said chamberto,respond to .,water level therein corresponding with the I .waterlevel I of the boiler, said chamber having. a. lateral compartmentextending therefrom in open communiea tion ,with. said chamberandextending vertically a ove an i e w .sa dtfloa -in p allel. relationwith said float chamber, said chamber and compartment. acomprising asingle receptacle having continuouS-and'imperforate; .wallspompletelya;enclosing; the

same and, .having exterior. communication only .throu h said. boilergconnectigns a .counterweig it. .in saidqvertical extension,toothedjrods or racks. projecting upwardly from said floatandcounterweight, agear contained; ;in said compartment. engaging saidtoothed ,rods'or. racks, a tube extending dOWnWardly from :saidchamberand having a transparent wall-at its lower portiomand an. indicatingrod. extendingdownwardly from said ;fi0at through. said .tube to.indicate the level :of said-float. through said tr nsparent wall. 1

=7 2.- .In Za- .device 10f the {class described, the combination. of afloat chamber for connection;with a.-boiler, afloat in saidlchamber torespond to Water level therein corresponding .with thewater level of.the'boiler, said chamber, having-a' lateral compartment extendingtherefrom in open communicationwith-said chamber and extendingverticallyrabove and below-said; float in parallel relation with saidfloat. chamber, said chamber and compartment comprising asingle..;receptacle havingv continuous and 5 imperforate walls completelyenclosing the same saznd having exterior communication only through saidboiler connections, a counterweight in said vertical extension, toothedrods or racks projecting upwardly from said float and counterweight, agear contained in said compartment engaging said toothed rods or racks,a tube extending downwardly from said chamber and having a transparentwall at its lower portion, an indicating rod extend- 10 ing downwardlyfrom said float through said tube to indicate the level of said floatthrough said transparent wall, and a valve member carried by saidindicating rod for closing said tube above said transparent wall whensaid float descends below a lower position.

In witness whereof, I hereunto subscribe my name this third day ofAugust, A. D.

OLAF E. OLESON.

predetermined i5

